Safe and vault locking and unlocking mechanism



y 9% M. BRETOS Y CLAVERIA 2,445,511

SAFE AND VAULT LOCKING AND UNLOCKING MECHANISM Filed Aug. 19, 1944 3 Sheets-Sheet 1 J INVEN'IOR.

11 TTOR NE Y July 20, 194. M. BRETOS Y CLAVERIA 2,445,511

SAFE AND VAULT LOCKING AND UNLOCKING MECHANISM Filed Aug. 19, 1944 I I 3 Sheets-Sheet 2 d TTOR NE Y July 20, 1948. M. BRETOS Y CLAVERIA 2,445,511

SAFE AND VAULT LOCKING AND UNLOCKING MECHANISM Filed Aug. 19, 1944 3 Sheets-Sheet 3 Patented July 20, 1948 UNITED STATES PATENT OFFICE SAFE AND VAULT LOCKING AND UNLOCKING MECHANISM V Manuel Bretos y'Glaveria, Mexico City, Mexico Applica tion August 19, 1944, Serial No. 550,191 V In Mexico January 4, 1944 of diverse operative members as hereinafter set forth;

In the accompanying drawings, Fig. lis a view of the inner face of a safe door to which my improvement has been applied and shows the mechanisms'in lockingposition.

Fig.2 is a view similar to Fig. 1, but showing the mechanism in unlocking position;

Fig. 3 is a. side view of one of the operating disks and its actuating roller secured on the inner surface of the safe door;

Fig. 4 is a side view of another disk constituting a. feature of the invention;

Fig. 5 is a perspective view of a link member forming another element of the invention;

Fig. 6 is a perspective view of a bar adapted for operation in association with the link shown in Fig. 5;

Figs. '7, 8, 9 and 10 are broken away side views illustrating the position of the locking mechanism at different stages of its operation; and

Fig. 11 is a transverse sectional view taken approximately on the line I l-II of Fig. 2.

Referring to the drawing, l designates the inner face of a safe door, on which is mounted for operation by the usual numbered dial D (Fig. 11) on the outer side of the door a disk combination 2, the indivdual disks of which are each provided with a. peripheral depression 4 for engagement with a detent 3 pivotally mounted on. an auxiliary locking device 5 mounted on the door, said locking device having a guide'slot 6 through which passes a headed pin secured in the door whereby the locking device 5 is slidable longitudinally thereof. In its forward edge the locking device 5 carries a short pin I disposed in position to engage an indentation [9 in the edge of a vertically slidable bar 8 thereby to maintain said bar in its uppermost position when the safe is looked, as indicated in Fig. 1. The said bar 8 at its lower end has a, bifurcated portion at right angles thereto and in said portion is pivoted a link 9 carrying a pair of rotatable rollers H and [4 for cooperation with a disk l0 mounted for rotation below the locking device 5, as hereinafter described.

particularly to an imgears-5. (01. 70-119) 2 To the said disk in are pivoted the ends of four radially extending bars [8 the opposite ends of which are pivot-ally connected respectively with the four locking plates ll of the safe, said disk being mounted for free rotation on the spindle of the usual door handle H disposed on the outside ofthe door.

On thepivotal axis of the disk I0, that is to say, on the spindle of the door handle, is secured a disk [6 having a peripheral indentation l5. for engagement by the roller i4 when the locking device 5 is operated by manipulation of the usual numbered dial and the consequent rotation of the guide I 2 carried by the disk Is to move said locking device away from the bar 8 so that the latter will descend by gravity until the roller M engages the said indentation I5, whereby on turning the operating handle of the safe the disk [6 is ro tated and with it the disk Ill because of the engagement of the roller II with the uppermost radial bar 18 as hereinafter described, thereby moving the radial bars l8to the position shown in Fig. 2 thus withdrawing ll of the locking plates I1 and permitting the safe to be opened. On the other hand, when the safe is to be locked by rotating the usual door handle counter-clockwise the disk It, and with it the disk It), is rotated to move the link 9 on the bar 8 to vertical position thus raising said bar until its indentation I9 is in position to be engaged by the pin 1 carried by the locking slide 5, so that the radial bars l8 are retained in the locking position shown in Fig. 1. In other words, in order to open the safe, the usual graduated dial on the outside of the safe door is operated until the last numeral thereon is opposite the index mark of the combination. Then on rotation of the knob the disk 2 is also rotated until its indentation 4 is engaged by the detent 3, whereby the locking device 5 is moved so that its pin 1 is carried out of engagement with the indentation IS in bar 8, whereupon the said bar 8 descends by gravity and roller I4 comes into contact with the edge of disk [6. Then by rotating the usual handle or pilot wheel for opening the door of the safe the disk I6 is also rotated and the roller [4 falls into the indentation IS in said disk thereby limiting its rotation. By the same movement the second roller ll carried by the link 9 has engaged the uppermost radial bar l8 at its pivotal connection with the disk I0 and caused said disk to rotate with the disk It thereby moving all of the radial bars l8 into the safeopening position shown in Fig. 2.

To look the safe, the handle or pilot wheel is rotated in the reverse or counter-clockwise direc- 3 tion whereby disk It pushes rollers l4 and H towards the right in Fig. 2, bar 8 remaining in its upright position. As soon as the disk It has been rotated sufliciently to move the link 9 to vertical position the combined weight of the bar and link acting on the disk It by means of the roller 14 further rotates said disk, and with it the disk l until the latter has moved the radial arms to the closing position shown in Fig. 1. In the meantime, by manipulating the graduated dial in the. reverse direction the bar 8 is moved upward and the locking slide moved forward until its pin 1 enters the indentation l9, thus retaining the bar 8 in its uppermost position. Aiter this opera:

tion the handle orpilot wheel is free to rotate in either direction, as is also the raduated hand wheel for operating the combination lock.

A special advantage of the invention liesin the fact that the combination'locking mechanism is secured to the inner wall of the safe casing, so that a would-be burglar cannot destroy it.

Having thus described my invention what I claim is:

1. The combination with a safe door having a main locking mechanism, of an auxiliary locking device comprising a vertically movable bar having means cooperating with the main locking mechanism for normally retaining said bar in its uppermost position, a rotatable disk disposed below said bar and having means for actuating the closing members of the safe, said bar having at its lower end a roller disposed in position to engage said actuating means, and means associated with said roller for rotating the disk and operating said actuating means thereby to move the closing members into safe-opening position.

2. The combination with a safe door having a main locking mechanism, of an auxiliary looking device comprising a, vertically movable bar having means cooperating with the main locking mechanism for normally retaining said bar in its uppermost position, a rotatable disk disposed below said bar, radial arms pivotally connected with said disk and with the closing members of the safe for actuating the same, said bar having at its lower end a roller disposed in position to engage one of said radial arms, and means associated with said roller for rotating the disk and thereby operating said radial arms to move the closing members into safe-opening position.

3. The combination with a safe door provided with a. main locking mechanism having locking bolts and means for operating said locking mechanism actuating said bolts, of an auxiliary looking device associated with said main locking mechanism for operation by manipulation of said locking mechanism, the organization being such that when the safe islocked said operating means are free to rotate in either direction,

' MANUEL BRETOS Y CLAVERIA.

REFERENCES CITED The following referencesare of recordin the file of this patent:

UNITED STATES PATENTS Wolters Sept. 6,1932 

